Ore-pulverizer



(No Model 3 ShetsSheet' N. CLEMENT.- 1

' ORE PULV-ERIZER. No. 357,369. Patented Feb. 8, 188 7.

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N. CLEMENT.

ORE PULVERIZER.

No. 357,369. Patented Feb. 8, 1887.

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N. CLEMENT. ORE PULVERIZER.

N0. 357,369. Patented Feb. 8, 1887.

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NELSON CLEMENT, OF CHICAGO, ILLINOIS.

ORE-PULVERIZER.

SPECIFICATION forming part of Letters Patent No. 357,369, dated February 8,1887.

Application filed October 13,1885. Renewed January 10, 1887. Serial No. 121,923. (No model.)

To all whom it may concern.-

Be itknown that I, NnLsoN CLEMENT, a citizen of the United Statesof America, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Ore-Pulverizers, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention has for its object to produce a machine that by simple and effective means will pulverize and separate the ore in a continuous operation; and it consists of the novel devices and combinations of devices hereinafter described and specifically claimed.

In the accompanying drawings, Figure 1 represents a side elevation of my machine; Fig. 2, a sectional side elevation showing the internal construction of the machine; Fig. 3, a horizontal section through-its center line on the line :0 m, Fig. 2; and Figs. 4 and 5, detached detail views.

Corresponding letters in the several figures of the drawings designate like parts.

A denotes a cylinder; preferably made of cast-iron. The internal surface of this cylinder is provided with a series of circular concave steps or pockets, at, at equal distances apart, and, according to the length of the cylinder, two or more series of suchsteps may be arranged side by side in intermediate order.

By having these pockets concave, as described,

the ore, after being reduced, is suitably elevated to be deposited upon a separating-screen. At its ends this cylinder A has projecting flanges b, riding upon flanged guiding and supporting wheels B, each mounted on ashaft or axle, c, journaled in boxes 0, that are secured upon a suitable frame-work, D, andupon the center of cylinder A is secured a spur-wheel rim, d, meshing with the teeth of a pinion, E, secured upon a shaft, 0, which is mounted upon pedestals and journaled in boxes f, secured upon framework D, and has a pulley, F, for driving with a belt. The cylinder Abeing thus supported on wheels B, it is rotated by pinion E in the direction indicated by the arrows.

Against each end of cylinder A is bolted or riveted a perforated annular plate, G, which is to operate in the manner of a screen, and the circular openings inside of the flanges are closed by stationary circular plates H, each rigidly secured to a standardbearing, g, by a bar, h. A shaft, 1', is passed longitudinally through cylinder A in proper position eccentric to such cylinder, with its ends projecting through plates H and secured in standards 9, and upon this shaft are pivoted, between collars, the hubs of two (more or less) arms, I, the ends of which are screw-threaded, and have adjustably secured, by two screw-nuts, bifurcated extensions j, and between the arms of each extension j is concentrically pivoted a cylindrical or elliptic roller, J, of about the same radius as the steps or pockets a of cylinder A. The cylinder A while rotating will lift on one of its steps or pockets a the roller J, until such step or pocket is moving away from it and the roller loses its support, when it will drop and strike into the next pocket below with a heavy blow, crushing thereby the ore contained therein, and then the roller is lifted again by this step or pocket for thenext blowinto the next following pocket, and so on successively. As soon as each step or pocket a arrives near the top of the cylinder, where it is brought to the proper incline, the ore therein will discharge itself into the bottom of the cylinder again.

L is the opening through one of the plates II for feeding the ore into the'cylinder, and where water is used a sufficient stream of it is let into the cylinder through opening L, or through a special inlet, which will wash the small particles of ore, as fast as reduced to the proper fineness, through the perforations of annular plates G, thus retaining in the cylinder the coarser pieces for further reduction.

For the dry process. I stretch between the plates H an inclined diaphragm, N, of wirecloth or perforated sheet'metal, upon which This machine is very simple in its construction and effective in ilsbperation of not only pulverizing the ore, but also continuously separating the fine particles as soon as reduced, either by the wet or dry system,thus making the process entirely automatic.

The cylindrical or elliptic hammers or p ounders, being pivotally secured to the swinging arms, will keep turning during the action, so as to present a new surface with each successive blow, and therefore they will wear uniformly and will last for a long time.

The position of the fulcrum for the swinging arms, carrying the hammers, relative to the cylinder maybe varied, but must always be eccentric.

\Vhat I claim is- L The combination, with a revolving cylinder provided with concave pockets opening into said cylinder, of a shaft passed through such cylinder and eccentric thereto, one or more arms pivoted to such shaft, and a hammer or pounder mounted upon the free end of each arm, as set forth.

2. The combination, with a revolving cylinl l l der provided with concave pockets opening into said cylinder, of suitable hammers or pounders pivoted eccentrically to the cylinder, andasuitable screen for separating the reduced and unreduced ore, as set forth.

3. A rotating cylinder provided internally with steps or pockets and having perforated end rings, in combination with stationary end plates and eccent-rically-pivoted arms carrying hammers orpounders, the whole operating substantially in the manner set forth, for the purpose specified.

4. The rotating cylinder A, having steps or pockets a, the swinging arms I j, with hammers J, and stationary end plates, H, in combination with inclined screen N, plate 0, and trough P, all constructed and arranged substantially as described, for the purpose specified.

In testimony whereof I affix my signature in presence of two witnesses.

NELSON CLEMENT.

'itnesses:

R1011. REINBOLD, FRANK S. BLANCHARD. 

